
The AirTAC Airtac BSLM Miniature Silencer BSLM03-S is a genuine mini silencer that cuts exhaust noise by 20 dB at 0.5 MPa using a copper-particle sintered element in a SUS304 body.
The BSLM03-S is the SUS304 version of AirTAC's mini silencer, threaded 3/8in PT for the exhaust port of a valve or cylinder. Air leaving a port does so as one sharp pressure pulse, and the part's job is to break that pulse up before it reaches an operator's ear. Behind the stainless body sits a copper-particle sintered element, and the pair is rated at 20 dB of noise reduction at 0.5 MPa.
BSLM takes the same sintered element as the full-size BSL and packs it into a shorter body, so it suits valve stations and machine frames where every millimetre of overhang counts. The SUS304 shell carries the corrosion resistance buyers specify stainless for - salt-water wash-down, marine air, chemical mist - while the pressure, vacuum and temperature envelope stays exactly the same as the standard version.
| Model | Airtac BSLM Miniature Silencer BSLM03-S |
|---|---|
| Type | Mini silencer |
| Series | BSLM |
| Noise reduction | 20 dB at 0.5 MPa |
| Element | Copper-particle sintered element in a sus304 body |
| Body material | Stainless steel 304 (-S variant) |
| Working pressure | 0 - 1.0 MPa (0 - 10 kgf/cm2) |
|---|---|
| Negative pressure | -750 mmHg (10 Torr) |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Thread standard | PT (Rc tapered) unless the code says otherwise |
POM release button and chuck, aluminium-alloy guide, stainless spring gasket, NBR O-ring; body brass or PBT depending on the part. Stainless (-S): SUS304 silencer body. The sound-absorbing element remains copper-particle sintered, so this variant is specified for corrosion resistance rather than as a wholly copper-free part. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
| BSLM | Mini silencer. |
|---|---|
| 01 / 02 / 03 / 04 | Thread: 1/8", 1/4", 3/8", 1/2". M5 where the series offers it. |
| D | Black. Blank = grey. |
| -S | Stainless-steel body. |
Clamp cylinders on a shrimp grading line are hosed with salt water every shift; the SUS304 body of the BSLM03-S outlasts an aluminium-alloy silencer in that environment and keeps the exhaust hiss down at the same time.
Solenoid valves on a plating-line chemical dosing skid exhaust into acid mist. The stainless housing handles the fumes, and the 20 dB rating takes the constant crack of valve exhaust off the operator's list of complaints.
Pilot valves on a vessel's deck winches vent into salt-laden open air. The 3/8in PT stainless mini silencer cuts the exhaust blast without corroding through, and its short body fits the cramped valve panels typical of wheelhouse bulkheads.
On this stainless page the metal figure is 20 dB at 0.5 MPa. Choose resin PAL or PALM when the 25 dB resin figure matters more than toughness: resin suits quiet indoor panels that never get knocked, while sintered metal shrugs off hot, oily and knocked-about exhausts. If you also need to set cylinder speed, step to the BESL series, which adds an adjustable exhaust throttle to the same silencing idea. Size to the valve's exhaust port rather than down - an undersized silencer restricts exhaust and slows the return stroke. In this stainless mini ladder the neighbours are BSLM02-S at 1/4in below and BSLM04-S at 1/2in above; stepping up enlarges the flow path and drops back-pressure further.
Quick checklist
Working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, usable under vacuum down to -750 mmHg (10 Torr), and a temperature range of -20 to +70 C. This SKU is the mini BSLM silencer with a SUS304 body, a 3/8in PT thread, and a rated noise reduction of 20 dB at 0.5 MPa.
Wrap PTFE tape around the male taper thread and start it by hand - a PT taper seals on its flanks, so heavy wrench torque is unnecessary on a mini body. Thread it into the valve's exhaust port and check it does not bottom out before it is snug; if it does, use the BSLM02-S below it in the ladder or add a straight fitting to reposition the silencer.
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